@page { size: A4; margin: 20mm 18mm 18mm 18mm; }
body {
  font-family: "Noto Serif CJK SC", "Source Han Serif SC", serif;
  font-size: 10.5pt; line-height: 1.8; color: #1a1a1a; margin: 0;
}
h1 { font-family: "Noto Sans CJK SC", sans-serif; font-size: 19pt; line-height: 1.4;
     margin: 0 0 4pt 0; text-align: center; }
h1 .en { display: block; font-size: 11pt; font-weight: 400; color: #555; margin-top: 6pt; font-family: "DejaVu Serif", serif; }
h2 { font-family: "Noto Sans CJK SC", sans-serif; font-size: 14pt; margin: 20pt 0 8pt 0;
     padding-bottom: 3pt; border-bottom: 1.2pt solid #2c5f8a; color: #1c4468; page-break-after: avoid; }
h3 { font-family: "Noto Sans CJK SC", sans-serif; font-size: 11.5pt; margin: 14pt 0 6pt 0; color: #2c5f8a; page-break-after: avoid; }
h4 { font-family: "Noto Sans CJK SC", sans-serif; font-size: 10.5pt; margin: 10pt 0 4pt 0; color: #333; page-break-after: avoid; }
p { margin: 6pt 0; text-align: justify; }
.meta { text-align: center; font-size: 9.5pt; color: #555; margin-bottom: 4pt; line-height: 1.6; }
.meta .authors { font-size: 10.5pt; color: #222; }
.banner { background: #f0f5f9; border-left: 3pt solid #2c5f8a; padding: 8pt 12pt; margin: 12pt 0; font-size: 9.5pt; }
.abstract { background: #fafafa; border: 0.6pt solid #ddd; padding: 10pt 14pt; margin: 12pt 0; }
.abstract h3 { margin-top: 0; }
figure { margin: 14pt 0; text-align: center; page-break-inside: avoid; }
figure img { max-width: 100%; border: 0.4pt solid #e0e0e0; }
figcaption { font-size: 9pt; color: #444; text-align: left; margin-top: 5pt; line-height: 1.6; }
figcaption .lab { font-weight: bold; color: #1c4468; }
table { border-collapse: collapse; margin: 10pt auto; font-size: 9.2pt; width: 100%; page-break-inside: avoid; }
caption { font-size: 9pt; color: #444; text-align: left; margin-bottom: 4pt; }
caption .lab { font-weight: bold; color: #1c4468; }
th { background: #eef3f7; border-top: 1pt solid #444; border-bottom: 0.6pt solid #888; padding: 4pt 7pt; font-family: "Noto Sans CJK SC", sans-serif; }
td { border-bottom: 0.4pt solid #ddd; padding: 3.5pt 7pt; }
tr:last-child td { border-bottom: 1pt solid #444; }
.num { text-align: right; font-family: "DejaVu Sans Mono", monospace; font-size: 8.8pt; }
.best { font-weight: bold; color: #0a5c2e; }
.bad { color: #a02020; }
.eq { text-align: center; margin: 10pt 0; font-family: "DejaVu Serif", serif; font-style: italic; font-size: 10.5pt; }
.eq .tag { float: right; font-style: normal; color: #666; }
.term { font-family: "DejaVu Sans Mono", monospace; font-size: 9.2pt; background: #f4f4f4; padding: 0 2pt; font-style: normal; }
.tnote { background: #fff9e6; border-left: 3pt solid #d9a441; padding: 7pt 11pt; margin: 10pt 0; font-size: 9.3pt; }
.tnote::before { content: "译注 "; font-weight: bold; color: #8a6414; font-family: "Noto Sans CJK SC", sans-serif; }
.interp { page-break-before: always; }
.interp h2 { border-bottom: 1.6pt solid #8a3a3a; color: #8a3a3a; }
.interp h3 { color: #8a3a3a; }
.crack { background: #fdf1f1; border-left: 3pt solid #a04040; padding: 8pt 12pt; margin: 10pt 0; }
.key { background: #eef7f0; border-left: 3pt solid #2e7d4f; padding: 8pt 12pt; margin: 10pt 0; }
ul, ol { margin: 6pt 0; padding-left: 20pt; }
li { margin: 3pt 0; text-align: justify; }
.refs { font-size: 8.5pt; color: #444; line-height: 1.55; }